<script setup lang="ts">
import { getGoodsByIdAPI } from "@/api/goods"
import { onLoad } from '@dcloudio/uni-app';
import { ref } from 'vue';
import type { GoodsResult } from "@/types/goods"
import AddressPanel from './components/AddressPanel.vue'
import ServicePanel from './components/ServicePanel.vue'
import type { SkuPopupEvent, SkuPopupInstanceType, SkuPopupLocaldata } from '@/components/vk-data-goods-sku-popup/vk-data-goods-sku-popup';
import { computed } from "vue";
import { addToCartApi } from "@/api/cart";
import { getOrderPreNowApi } from "@/api/order";
import { useAddressStore } from "@/stores/modules/address";
// 获取屏幕边界到安全区域距离
const { safeAreaInsets } = uni.getSystemInfoSync()
// 获取传到商品详情页的商品id
const query = defineProps<{id: string}>()
// 获取商品详情信息
const goods = ref<GoodsResult>()
const getGoodsData = async ()=>{
  const res = await getGoodsByIdAPI(query.id)
  goods.value = res.result

  // 给sku模块赋值
  localdata.value = {
    /** 商品 ID */
    _id: res.result.id,
    /** 商品名称 */
    name: res.result.name,
    /** 商品图片 */
    goods_thumb: res.result.mainPictures[0],
    /** 商品规格列表 */
    spec_list: res.result.specs.map(v=>{
      return {
        name: v.name,
        list: v.values
      }
    }),
    /** 商品SKU列表 */
    sku_list: res.result.skus.map((v) => ({
      _id: v.id,
      goods_id: res.result.id,
      goods_name: res.result.name,
      image: v.picture,
      price: v.price * 100, // 注意：需要乘以 100
      stock: v.inventory,
      sku_name_arr: v.specs.map((value) => value.valueName),
    })),
  }
  console.log(goods.value, 'res=')
}
// 定义当前轮播图播放的index
const currentIndex = ref(1)
// 轮播图变换事件
const onChange:UniHelper.SwiperOnChange = (ev)=>{
  currentIndex.value = ev.detail.current +1
}
// 放大轮播图图片事件
const onEnlarge = (url:string)=>{
  uni.previewImage({
    current: url,
    urls: goods.value!.mainPictures
  })
}
// 处理弹窗
const popup = ref<{
  open: (type?:UniHelper.UniPopupType)=>void
  close: ()=>void
}>()
// 弹出层渲染条件
const popupName = ref<'address' | 'service'>()
const openPop = (name: typeof popupName.value)=>{
  popupName.value = name
  popup.value?.open()
}

// sku组件
const ifShowSku = ref(false)
const localdata = ref({} as SkuPopupLocaldata)
// 定义sku组件按钮模式
enum skuMode {
  both = 1,
  cart = 2,
  purchase = 3
}
const mode = ref<skuMode>(skuMode.both)
// 获取sku组件实例
const skuRef = ref<SkuPopupInstanceType>()
// 获取sku组件已选择规则数组并渲染到goods页面的规格信息中
const selectedArrText = computed(()=>{
  // if(popupName.value !== 'service') return 
  // 选择商品规格后复选会导致返回[0: '', 1: '']情况，join后会返回''，需通过trim进行兼容性处理
  return skuRef.value?.selectArr?.join(' ').trim() || '请选择商品规格'
})
const addressStore = useAddressStore()
// 获取sku组件已选择地址信息并渲染到goods页面的地址信息中
const selectedAddressText = computed(()=>{
  return addressStore.selectedAddress ? addressStore.selectedAddress.fullLocation : '请选择地址'
})

// 加入购物车事件和立即购买事件
const openSkuModal = (type: skuMode)=>{
  // 加入购物车按钮打开的sku弹窗只展示加入购物车按钮;立即购买按钮打开的sku弹窗只展示立即购买按钮
  mode.value = type
  // 打开sku弹窗
  ifShowSku.value = true
}

// sku弹窗中的加入购物车功能
const handleAddCard = async (ev:SkuPopupEvent)=>{
  await addToCartApi({skuId: ev._id, count: ev.buy_num})
  uni.showToast({
    icon: 'success',
    title: '添加成功！'
  })
  // 关闭sku弹窗
  ifShowSku.value = false
}
// sku组件的立即购买事件
const handleBuyNow = (ev: SkuPopupEvent)=>{
  // 立即购买，跳转到预付订单页，并携带传参到预付订单页，以加载新订单内容接口使用
  uni.navigateTo({ url: `/pagesOrder/create/create?skuId=${ev._id}&count=${ev.buy_num}` })
}
onLoad(()=>{
  getGoodsData()
})
</script>

<template>
  <vk-data-goods-sku-popup 
  ref="skuRef"
  v-model="ifShowSku" 
  :localdata="localdata" 
  :mode="mode"
  add-cart-background-color="#ff9402"
  buy-now-background-color="#db1818"
  @addCart="handleAddCard"
  @buyNow="handleBuyNow"/>
  <scroll-view scroll-y class="viewport">
    <!-- 基本信息 -->
    <view class="goods">
      <!-- 商品主图 -->
      <view class="preview">
        <swiper circular style="height: 100%;" @change="onChange">
          <swiper-item v-for="item in goods?.mainPictures" :key="item">
            <image
              @tap="onEnlarge(item)"
              style="width: 100%;height: 100%;"
              mode="aspectFill"
              :src="item"
            />
          </swiper-item>
        </swiper>
        <view class="indicator">
          <text class="current">{{currentIndex}}</text>
          <text class="split">/</text>
          <text class="total">{{goods?.mainPictures.length}}</text>
        </view>
      </view>

      <!-- 商品简介 -->
      <view class="meta">
        <view class="price">
          <text class="symbol">¥</text>
          <text class="number">{{goods?.price}}</text>
        </view>
        <view class="name ellipsis">{{goods?.name}} </view>
        <view class="desc"> {{goods?.desc}} </view>
      </view>

      <!-- 操作面板 -->
      <view class="action">
        <view class="item arrow" @tap="openSkuModal(skuMode.both)">
          <text class="label">选择</text>
          <text class="text ellipsis"> {{selectedArrText}} </text>
        </view>
        <view @tap="openPop('address')" class="item arrow">
          <text class="label">送至</text>
          <text class="text ellipsis"> {{selectedAddressText}} </text>
        </view>
        <view  @tap="openPop('service')" class="item arrow">
          <text class="label">服务</text>
          <text class="text ellipsis"> 无忧退 快速退款 免费包邮 </text>
        </view>
      </view>
      
    </view>

    <!-- 商品详情 -->
    <view class="detail panel">
      <view class="title">
        <text>详情</text>
      </view>
      <view class="content">
        <view class="properties">
          <!-- 属性详情 -->
          <view class="item" v-for="item in goods?.details.properties" :key="item.name">
            <text class="label">{{item.name}}</text>
            <text class="value">{{item.value}}</text>
          </view>
        </view>
        <!-- 图片详情 -->
        <image
        style="width: 100%;margin-top: -5px"
          v-for="item in goods?.details.pictures"
          :key="item"
          mode="widthFix"
          :src="item"
        ></image>
      </view>
    </view>

    <!-- 同类推荐 -->
    <view class="similar panel">
      <view class="title">
        <text>同类推荐</text>
      </view>
      <view class="content">
        <navigator
          v-for="item in goods?.similarProducts"
          :key="item.id"
          class="goods"
          hover-class="none"
          :url="`/pages/goods/goods?id=${item.id}`"
        >
          <image
            class="image"
            mode="aspectFill"
            :src="item.picture"
          ></image>
          <view class="name ellipsis">{{item.name}}</view>
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">{{item.price}}</text>
          </view>
        </navigator>
      </view>
    </view>
  </scroll-view>

  <!-- 用户操作 -->
  <view class="toolbar" :style="{ paddingBottom: safeAreaInsets?.bottom + 'px' }">
    <view class="icons">
      <button class="icons-button"><text class="icon-heart"></text>收藏</button>
      <!-- #ifdef MP-WEIXIN -->
      <button class="icons-button" open-type="contact">
        <text class="icon-handset"></text>客服
      </button>
      <!-- #endif -->
      
      <navigator class="icons-button" url="/pages/cart/cart2" open-type="navigate">
        <text class="icon-cart"></text>购物车
      </navigator>
    </view>
    <view class="buttons">
      <view class="addcart" @tap="openSkuModal(skuMode.cart)"> 加入购物车 </view>
      <view class="buynow" @tap="openSkuModal(skuMode.purchase)"> 立即购买 </view>
    </view>
  </view>

  <view>
		<uni-popup ref="popup" type="bottom" background-color="#fff">
      <AddressPanel v-if="popupName === 'address'" @close="popup?.close()"/>
      <ServicePanel v-else @close="popup?.close()"/>
    </uni-popup>
	</view>
</template>

<style lang="scss">
// 兼容处理非小程序页面不展示客服按钮时样式空间分配不均
/* #ifdef H5 || APP-PLUS */
.toolbar .icons .navigator-wrap{
  flex: 1;
}
/* #endif */
page {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.viewport {
  overflow-y: scroll;
  background-color: #f4f4f4;
}

.panel {
  margin-top: 20rpx;
  background-color: #fff;
  .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90rpx;
    line-height: 1;
    padding: 30rpx 60rpx 30rpx 6rpx;
    position: relative;
    text {
      padding-left: 10rpx;
      font-size: 28rpx;
      color: #333;
      font-weight: 600;
      border-left: 4rpx solid #db1818;
    }
    navigator {
      font-size: 24rpx;
      color: #666;
    }
  }
}

// .arrow {
//   &::after {
//     width: 10px;
//             height: 10px;
//             border-top: 2px solid;
//             border-right: 2px solid;
//             border-color: #ccc;
//             content: '';
//             position: absolute;
//             right: 20px;
//             top: 20px;
//             transform: rotate(45deg);
//   }
// }
.arrow {
  &::after {
    position: absolute;
    top: 50%;
    right: 30rpx;
    content: '\e6c2';
    color: #ccc;
    font-family: 'erabbit' !important;
    font-size: 32rpx;
    transform: translateY(-50%);
  }
}

/* 商品信息 */
.goods {
  background-color: #fff;
  .preview {
    height: 750rpx;
    position: relative;
    .image {
      width: 750rpx;
      height: 750rpx;
    }
    .indicator {
      height: 40rpx;
      padding: 0 24rpx;
      line-height: 40rpx;
      border-radius: 30rpx;
      color: #fff;
      font-family: Arial, Helvetica, sans-serif;
      background-color: rgba(0, 0, 0, 0.3);
      position: absolute;
      bottom: 30rpx;
      right: 30rpx;
      .current {
        font-size: 26rpx;
      }
      .split {
        font-size: 24rpx;
        margin: 0 1rpx 0 2rpx;
      }
      .total {
        font-size: 24rpx;
      }
    }
  }
  .meta {
    position: relative;
    border-bottom: 1rpx solid #eaeaea;
    .price {
      height: 130rpx;
      padding: 25rpx 30rpx 0;
      color: #fff;
      font-size: 34rpx;
      box-sizing: border-box;
      // background-color: #e02352dc;
      background: linear-gradient(to right, #db1818, #eb4f4f);
    }
    .number {
      font-size: 56rpx;
    }
    .brand {
      width: 160rpx;
      height: 80rpx;
      overflow: hidden;
      position: absolute;
      top: 26rpx;
      right: 30rpx;
    }
    .name {
      max-height: 88rpx;
      line-height: 1.4;
      margin: 20rpx;
      font-size: 32rpx;
      color: #333;
    }
    .desc {
      line-height: 1;
      padding: 0 20rpx 30rpx;
      font-size: 24rpx;
      color: #cf4444;
    }
  }
  .action {
    padding-left: 20rpx;
    .item {
      height: 90rpx;
      padding-right: 60rpx;
      border-bottom: 1rpx solid #eaeaea;
      font-size: 26rpx;
      color: #333;
      position: relative;
      display: flex;
      align-items: center;
      &:last-child {
        border-bottom: 0 none;
      }
    }
    .label {
      width: 60rpx;
      color: #898b94;
      margin: 0 16rpx 0 10rpx;
    }
    .text {
      flex: 1;
      -webkit-line-clamp: 1;
    }
  }
}

/* 商品详情 */
.detail {
  padding-left: 20rpx;
  .content {
    margin-left: -20rpx;
  }
  .properties {
    padding: 0 20rpx;
    margin-bottom: 30rpx;
    .item {
      display: flex;
      line-height: 2;
      padding: 10rpx;
      font-size: 26rpx;
      color: #333;
      border-bottom: 1rpx dashed #ccc;
    }
    .label {
      width: 200rpx;
    }
    .value {
      flex: 1;
    }
  }
}

/* 同类推荐 */
.similar {
  .content {
    padding: 0 20rpx 200rpx;
    background-color: #f4f4f4;
    display: flex;
    flex-wrap: wrap;
    .goods {
      width: 42%;
      padding: 24rpx 20rpx 20rpx;
      margin: 20rpx 7rpx;
      border-radius: 10rpx;
      background-color: #fff;
    }
    .image {
      width: 300rpx;
      height: 260rpx;
    }
    .name {
      height: 80rpx;
      margin: 10rpx 0;
      font-size: 26rpx;
      color: #262626;
    }
    .price {
      line-height: 1;
      font-size: 20rpx;
      color: #cf4444;
    }
    .number {
      font-size: 26rpx;
      margin-left: 2rpx;
    }
  }
  navigator {
    &:nth-child(even) {
      margin-right: 0;
    }
  }
}

/* 底部工具栏 */
.toolbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background-color: #fff;
  height: 100rpx;
  padding: 0 20rpx var(--window-bottom);
  border-top: 1rpx solid #eaeaea;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: content-box;
  .buttons {
    display: flex;
    & > view {
      width: 220rpx;
      text-align: center;
      line-height: 72rpx;
      font-size: 26rpx;
      color: #fff;
      border-radius: 72rpx;
    }
    .addcart {
      background-color: #ff9402;
    }
    .buynow,
    .payment {
      background-color: #db1818;
      margin-left: 20rpx;
    }
  }
  .icons {
    padding-right: 10rpx;
    display: flex;
    align-items: center;
    flex: 1;
    .icons-button {
      flex: 1;
      text-align: center;
      line-height: 1.4;
      padding: 0;
      margin: 0;
      border-radius: 0;
      font-size: 20rpx;
      color: #333;
      background-color: #fff;
      &::after {
        border: none;
      }
    }
    text {
      display: block;
      font-size: 34rpx;
    }
  }
}
</style>